(S,Z)-1-phenylhex-4-en-3-yl pyridine-2-carboxylate | 1016652-33-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: (S,Z)-1-phenylhex-4-en-3-yl pyridine-2-carboxylate
• 英文别名: [(Z,3S)-1-phenylhex-4-en-3-yl] pyridine-2-carboxylate
• CAS: 1016652-33-7
• 化学式: C₁₈H₁₉NO₂
• 分子量: 281.354
• InChiKey: SLYSBBIYEWCISS-NGKAXPBTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  21
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  39.2
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (S,Z)-1-phenylhex-4-en-3-yl pyridine-2-carboxylate 、 三甲基乙炔基硅 在 正丁基锂 、 copper(I) bromide dimethylsulfide complex 、 magnesium bromide 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 2.0h， 以80%的产率得到(R,E)-3-methyl-7-phenyl-1-trimethylsilyl-4-hepten-1-yne
  参考文献：
  名称：

  Formation of Chiral C(sp³)−C(sp) Bond by Allylic Substitution of Secondary Allylic Picolinates and Alkynyl Copper Reagents

  摘要：

  To establish allylic substitution of secondary allylic alcohol derivatives with alkynyl copper reagents, allylic esters bearing the (2-pyridine)CO2-, (2-pyrazine)CO2-, (EtO)(2)PO2-, C6F5CO2-, o-(Ph2P)-C6H4CO2-, MeOCO2-, or AcO-group were examined. First, picolinate (R-1 = Me, R-2 = CH2OPMB) was subjected to reaction with (TMS-C C)(2)CuLi center dot LiBr at 0 degrees C. Although no substitution took place, MgBr, (3 equiv) was found to promote the reaction to produce the anti S(N)2' product in 93% yield with 94% regioselectivity and 99% chirality transfer. In contrast, substitution of the other esters with the copper reagent in the presence of MgBr, were less reactive ((2-pyrazin)CO2-) or marginally reactive (other cases). Generality of the substitution using picolinates was established with five picolinates (R-1 = Me, Ph(CH2)(2), PMBO(CH2)(3); R-2 = Me, CH2OPMB, CH2OTBS, C5H11, c-C6H11) and seven alkynyl copper reagents (R-3 = TMS, Ph, p-TBSOC6H4, p- and o-MeOC6H4, P-MeC6H4, p-FC6H4), furnishing anti S(N)2' products in 61-93% yields with high regioselectivity (usually > 90%) and high chirality transfer (usually > 95%). In addition, transformation of the products was briefly studied.

  DOI：

  10.1021/jo901728b
• 作为产物：
  描述：

  [(3S)-1-phenylhex-4-yn-3-yl] pyridine-2-carboxylate 在 Lindlar's catalyst 、 氢气 作用下， 以 乙酸乙酯 为溶剂， 以87%的产率得到(S,Z)-1-phenylhex-4-en-3-yl pyridine-2-carboxylate
  参考文献：
  名称：

  Formation of Chiral C(sp³)−C(sp) Bond by Allylic Substitution of Secondary Allylic Picolinates and Alkynyl Copper Reagents

  摘要：

  To establish allylic substitution of secondary allylic alcohol derivatives with alkynyl copper reagents, allylic esters bearing the (2-pyridine)CO2-, (2-pyrazine)CO2-, (EtO)(2)PO2-, C6F5CO2-, o-(Ph2P)-C6H4CO2-, MeOCO2-, or AcO-group were examined. First, picolinate (R-1 = Me, R-2 = CH2OPMB) was subjected to reaction with (TMS-C C)(2)CuLi center dot LiBr at 0 degrees C. Although no substitution took place, MgBr, (3 equiv) was found to promote the reaction to produce the anti S(N)2' product in 93% yield with 94% regioselectivity and 99% chirality transfer. In contrast, substitution of the other esters with the copper reagent in the presence of MgBr, were less reactive ((2-pyrazin)CO2-) or marginally reactive (other cases). Generality of the substitution using picolinates was established with five picolinates (R-1 = Me, Ph(CH2)(2), PMBO(CH2)(3); R-2 = Me, CH2OPMB, CH2OTBS, C5H11, c-C6H11) and seven alkynyl copper reagents (R-3 = TMS, Ph, p-TBSOC6H4, p- and o-MeOC6H4, P-MeC6H4, p-FC6H4), furnishing anti S(N)2' products in 61-93% yields with high regioselectivity (usually > 90%) and high chirality transfer (usually > 95%). In addition, transformation of the products was briefly studied.

  DOI：

  10.1021/jo901728b

文献信息

• New General Method for Regio- and Stereoselective Allylic Substitution with Aryl and Alkenyl Coppers Derived from Grignard Reagents
  作者：Yohei Kiyotsuka、Yuji Katayama、Hukum P. Acharya、Tomonori Hyodo、Yuichi Kobayashi

  DOI：10.1021/jo802426g

  日期：2009.3.6

  Allylic substitution with sp2-carbon reagents (aryl and alkenyl anions) was realized by using allylic picolinates and copper reagents derived from RMgBr and CuBr·Me2S to afford anti SN2′ products regio- and stereoselectively. Steric and electronic factors in the reagents and the size of the methylene substituents around the allylic moiety marginally affected the selectivity. The reaction system was

  通过使用烯丙基吡啶甲酸酯和衍生自RMgBr和CuBr·Me 2 S的铜试剂实现Sp 2-碳试剂（芳基和烯基阴离子）的烯丙基取代，可以在区域和立体选择性地提供抗S N 2'产物。试剂中的立体和电子因素以及烯丙基部分周围的亚甲基取代基的大小在一定程度上影响了选择性。该反应系统也与烷基试剂相容。此外，该取代被应用于四元中心的构建和（-）-倍半茶烯酚的合成。吸电子的C的吡啶基的性质和螯合（═ ö）-C 5 H ^ 4 Ñ到MgBr 2 发现原位产生的碳负责替代的高效率。
• Picolinoxy Group, a New Leaving Group for anti S_N2′ Selective Allylic Substitution with Aryl Anions Based on Grignard Reagents
  作者：Yohei Kiyotsuka、Hukum P. Acharya、Yuji Katayama、Tomonori Hyodo、Yuichi Kobayashi

  DOI：10.1021/ol800300x

  日期：2008.5.1

  The picolinoxy group was found to be an extremely powerful leaving group for allylic substitution with aryl nucleophiles derived from ArMgBr and CuBr*Me2S. The substitution proceeds with anti SN2' pathway and with high chirality transfer. The electron-withdrawing effect of the pyridyl group and chelation to MgBr2 are likely the origin of success. Results suggesting these effects were obtained.

  发现吡咯啉氧基是被衍生自ArMgBr和CuBr * Me2S的芳基亲核试剂进行烯丙基取代的极其强大的离去基团。取代以抗SN2'途径和高手性转移进行。吡啶基的吸电子作用和与MgBr2的螯合可能是成功的源头。结果表明这些效果。
• Highly efficient substitution of allylic picolinates with copper reagents derived from aryl-, alkenyl-, furyl-, and thienyl-lithiums
  作者：Yohei Kiyotsuka、Yuichi Kobayashi

  DOI：10.1016/j.tet.2009.11.052

  日期：2010.1

  R2=CH2OTBS), with phenylcopper reagents derived from salt free PhLi (2 equiv) and CuBr·Me2S (2 and 1 equiv, respectively) was highly promoted by MgBr2 (3 equiv), producing anti SN2′ product regio- and stereoselectively. This reagent system was proven to be general with several picolinates (R1, R2: Ph(CH2)2, PMBO(CH2)3, Me, TBSOCH2, PMBOCH2, c-Hex). Furthermore, aryl copper reagents prepared from ArLi, which

  用衍生自苯基铜的试剂取代光学活性的烯丙基吡啶甲酸顺式R 1 -CH（OC（O）（2-Py））CH CHR 2（R 1 =（CH 2）2 Ph，R 2 = CH 2 OTBS）MgBr 2（3当量）高度促进了无盐PhLi（2当量）和CuBr·Me 2 S（分别为2和1当量），产生区域和立体选择性的抗S N 2'产物。事实证明，该试剂体系与几种吡啶甲酸（R 1，R 2：Ph（CH 2）2，PMBO（CH）2）3，Me，TBSOCH 2，PMBOCH 2，c -Hex）。此外，事实证明，由ArLi制备的芳基铜试剂可通过锂-卤素交换制得，与存在的MgBr 2交换量比交换产生的LiX量大的MgBr 2兼容。2-MeOC：取代不与芳基上铜板（Ar'的空间位阻干扰6 ħ 4，2,6-（MOMO）2 -4-MEC 6 ħ 2，2,6-ME 2 ç 6 ħ 3等）。同样，立体定义的顺式和反式烯基，呋喃基和噻吩基试剂可有效地产生相应的抗S
• Formation of Chiral C(sp³)−C(sp) Bond by Allylic Substitution of Secondary Allylic Picolinates and Alkynyl Copper Reagents
  作者：Yohei Kiyotsuka、Yuichi Kobayashi

  DOI：10.1021/jo901728b

  日期：2009.10.2

  To establish allylic substitution of secondary allylic alcohol derivatives with alkynyl copper reagents, allylic esters bearing the (2-pyridine)CO2-, (2-pyrazine)CO2-, (EtO)(2)PO2-, C6F5CO2-, o-(Ph2P)-C6H4CO2-, MeOCO2-, or AcO-group were examined. First, picolinate (R-1 = Me, R-2 = CH2OPMB) was subjected to reaction with (TMS-C C)(2)CuLi center dot LiBr at 0 degrees C. Although no substitution took place, MgBr, (3 equiv) was found to promote the reaction to produce the anti S(N)2' product in 93% yield with 94% regioselectivity and 99% chirality transfer. In contrast, substitution of the other esters with the copper reagent in the presence of MgBr, were less reactive ((2-pyrazin)CO2-) or marginally reactive (other cases). Generality of the substitution using picolinates was established with five picolinates (R-1 = Me, Ph(CH2)(2), PMBO(CH2)(3); R-2 = Me, CH2OPMB, CH2OTBS, C5H11, c-C6H11) and seven alkynyl copper reagents (R-3 = TMS, Ph, p-TBSOC6H4, p- and o-MeOC6H4, P-MeC6H4, p-FC6H4), furnishing anti S(N)2' products in 61-93% yields with high regioselectivity (usually > 90%) and high chirality transfer (usually > 95%). In addition, transformation of the products was briefly studied.